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Naily [24]
3 years ago
7

Evaluate f(-3)=-x^2-5

Mathematics
1 answer:
Sliva [168]3 years ago
5 0
Sub -3 for x
f(-3)=-(-3)^2-5
f(-3)=-(9)-5
f(-3)=-9-5
f(-3)=-14
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Answer:

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Step-by-step explanation:

The easiest common denominator to find is the product of the denominators you have.

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The difference is ...

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<em>Additional comment</em>

The difference numerator and denominator have a common factor of 2, so can be reduced to 17/24. The denominator 24 could have been used as the common denominator from the start.

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Using the <em>least common denominator</em> does not always result in a reduced sum or difference. If some other denominator is used (as here), then you can be assured that the result will need to be reduced to get to lowest terms.

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